| Astoria to Mangualde | 5,263.64 mi (8,471.01 km) |
| Astoria to Marco de Canavezes | 5,219.93 mi (8,400.66 km) |
| Astoria to Marinha Grande | 5,268.98 mi (8,479.61 km) |
| Astoria to Massama | 5,309.51 mi (8,544.83 km) |
| Astoria to Matosinhos | 5,201.44 mi (8,370.92 km) |
| Astoria to Mealhada | 5,252.07 mi (8,452.39 km) |
| Astoria to Melgaco | 5,166.80 mi (8,315.17 km) |
| Astoria to Melres | 5,217.69 mi (8,397.06 km) |
| Astoria to Mira | 5,239.81 mi (8,432.66 km) |
| Astoria to Miranda do Corvo | 5,271.01 mi (8,482.87 km) |
| Astoria to Mirandela | 5,236.15 mi (8,426.76 km) |
| Astoria to Mogadouro | 5,259.59 mi (8,464.49 km) |
| Astoria to Moimenta da Beira | 5,248.66 mi (8,446.90 km) |
| Astoria to Moita | 5,325.29 mi (8,570.23 km) |
| Astoria to Moncao | 5,162.00 mi (8,307.44 km) |
